iOS/Android: We've mentioned how the Wake N' Shake alarm clock app makes you shake your phone vigorously to shut off the alarm in the morning, but the latest version of the app adds another incentive to get up on time: The early bird crushes his friends in a multiplayer game.

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Wake N' Shake now includes 50 different achievements you can earn for waking up on time or early and quickly dismissing the alarm by shaking your phone. Plus, as you use the app you get points, and that score determines where you fall on the leaderboard of your friends (via Facebook.) The more you wake on time and the faster you respond to the alarm, the the higher your score and your place on the leaderboards.

The alarm side still works as advertised: the alarm goes off and the phone starts laughing maniacally. You then have to shake the phone vigorously to get the alarm to turn off. You can set the shake intensity required to anywhere from "Teddy Bear" to "Merciless," depending on how much of a workout you want. Check out a hypothetical morning with Wake N' Shake here. If you like what you see, grab the app in the iTunes App Store now for $0.99 (normally $1.99) or at Google Play (the updated version for Android is coming soon) for $1.